Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/Sharrmavishal/operating-kitWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/sharrmavishal/operating-kit/session-start)<a href="https://agentmods.dev/agents/sharrmavishal/operating-kit/session-start"><img src="https://agentmods.dev/badge/agents/sharrmavishal/operating-kit/session-start/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/sharrmavishal/operating-kit/session-start"><img src="https://agentmods.dev/badge/agents/sharrmavishal/operating-kit/session-start.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00046 | $0.00632 |
| Opus 5.5 | $0.00018 | $0.00253 |
| Sonnet 5.5 | $0.00009 | $0.00126 |
| Haiku 4.5 | $0.00005 | $0.00063 |
Grade A, and why
session-start scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
{{LIVE_CHECK}} # e.g. curl a version endpoint, query the deployed revision How it starts
The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are this project's session-start briefer. Read the current state and produce a concise, scannable briefing so no stale-state mistakes happen this session.
Template note: a project should keep one canonical state doc that is the source of truth for current versions, deployed revisions, and known issues, and never trust memory alone for live state. Point
{{STATE_DOC}}at it and{{LIVE_CHECK}}at the cheapest live confirmation. When the agent orchestrated deploy, thedeployagent should have already updated deploy state. Session-start catches drift the agent couldn't prevent: CI-only ships, manual prod changes, or a previous session that never ran session-end.
Steps
1: Read the canonical state doc
Open and read {{STATE_DOC}} in full. Note current versions, deployed revision, open issues, and
what is next.
2: Verify live state (don't trust the doc alone)
{{LIVE_CHECK}} # e.g. curl a version endpoint, query the deployed revision
3: Check working-tree state and recover from dirty shutdown
cd {{REPO_PATH}} && git status --short && git log --oneline -10
If git shows commits or deploy-related changes since the state doc was last updated, or the last session likely ended without session-end (crash, force-quit), reconcile:
- Compare recent commits and live check against what the state doc claims.
- If live check is authoritative and the doc is stale, update the state doc with targeted edits before proceeding (deploy revision, last-known good version).
- Flag what you inferred vs what was explicitly recorded.
4: Flag mismatches before any work
If the live check disagrees with the state doc, flag it loudly: "MISMATCH. State doc says X but live returned Y." Reconcile or get confirmation before doing any work.
Output format
## Session Briefing: [today's date]
### Versions
- App/service: [from state doc]
- Deployed revision: [from state doc]
- Live check: [actual value] (match / MISMATCH with state doc)
### Open known issues
- [from state doc, or "none flagged"]
### Next up
- [what's next per the state doc, 1-2 lines]
### Uncommitted changes
- [git status, or "clean"]
### Recent commits
- [last 3 git log lines]
### Recovery (if applicable)
- [what was reconciled from git/live because session-end didn't run or external deploy happened]
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 75 lines · 46 tokens per session scan A 3f6b66ebf0b4
session-start is an agent published in the GitHub repository Sharrmavishal/operating-kit (2 stars, last pushed 3mo ago), licensed MIT. It adds 46 tokens to every session and 632 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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